La libéralisation du commerce extérieur égyptien et l'accord du GATT

Contribution a l'etude du traitement de la morve experimentale du cobaye par l'anamorve, la sulfadiazine, la penicilline et la Streptomycine

3.6. Ultrastructure De La Spermiogenese Et Du Spermatozoïde Du Genre

This paper describes the ultrastructure of spermiogenesis and the mature spermatozoon of two Dipylidiidae cestodes, Joyeuxiella echinorhynchoides and J. pasqualei. In both species, spermiogenesis follows the type III described by Bâ and Marchand for the cyclophyllideans. Nevertheless, it is interesting to note the presence of striated roots associated with the centrioles. The spermatozoon prese...

Sur la Préparation et la Concentration du Sérum antirahique en Iran

La Fièvre Aphteuse et la méthode de préparation du vaccin anti-aphteux

La Semi - Autonomie du Vivant : la Stratégie du Choc et le “ Collège Invisible “ , l ' Origine du Cancer

Cancer (malignant neoplasm) may affect people at all ages, even foetuses, and risk tends to increase with age. A group of cells displays the traits of “uncontrolled growth and division beyond the normal limits”, “invasion and destruction of adjacent tissues”, and “spreading to other locations via lymph or blood”. These properties differentiate cancers from benign tumours, which are self-limited...